// lib/onLoad.js
// Idempotent per-tenant bootstrap + active-CSS rehydration (ARCHITECTURE.md 5.6).
const db = require("@saltcorn/data/db");
const { getState } = require("@saltcorn/data/db/state");
const { eachTenant } = require("@saltcorn/admin-models/models/tenant");  // canonical (folded fix)
const themeStore = require("./themeStore");
const cssCache   = require("./cssCache");
const { getActivePointer } = require("./activePointer");
const { PLUGIN_NAME } = require("./constants");

async function bootstrapTenant() {
  // 1) HOT-PATH SHORT-CIRCUIT: if the table already exists for THIS tenant, skip all DDL
  //    work cheaply (loadPlugin re-runs onLoad on every activate). (folded review fix)
  await themeStore.ensureTableForCurrentTenant();   // Table.findOne first; Table.create only if null

  // 2) Rehydrate the active-CSS cache from the persisted pointer so the live site is themed
  //    immediately after a restart/new worker (folded review fix: rehydration was unowned).
  try {
    const { activeThemeId, activeByRole } = getActivePointer();
    const keys = new Set();
    if (activeThemeId) keys.add(null);                          // default key
    for (const r of Object.keys(activeByRole)) keys.add(Number(r));
    for (const roleKey of keys) {
      const id = roleKey == null ? activeThemeId : activeByRole[roleKey];
      if (id) await cssCache.warm(id, roleKey);                // recompile -> cache
    }
  } catch (e) { getState().log(3, `theme-builder rehydrate failed: ${e.message}`); }
}

// eachTenant self-selects single vs multi: it runs default_schema FIRST then iterates
// DB-backed tenants only in MT mode. No hand-rolled is_it_multi_tenant branch. (folded fix)
async function onLoad(/* rawCfg */) {
  await eachTenant(bootstrapTenant);
}
module.exports = { onLoad, bootstrapTenant };